fix(solid): keep client stores pending during hydration

[GabbeV]

Summary

Client-sourced stores currently expose their seed during hydration unless seedLoadingValue is enabled. This makes a value that was not declared as commit zero observable before the client derive has run.

Keep these stores unasked through hydration so that:

• without seedLoadingValue, reads suspend until the first client result
• with seedLoadingValue: true, the seed remains visible as commit zero

This is extracted from #3194 because the behavior applies independently to the existing seeded API and does not depend on the proposed seedless store API.

How did you test this change?

From packages/solid:

• pnpm exec vitest run test/client-hydration.spec.ts (128 tests)
• pnpm types
• pnpm test-types

[changeset-bot]

🦋 Changeset detected

Latest commit: 6b3871a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 11 packages

Name	Type
solid-js	Patch
@solidjs/element	Patch
@solidjs/h	Patch
@solidjs/html	Patch
test-integration	Patch
@solidjs/universal	Patch
@solidjs/web	Patch
@solidjs/babel-plugin	Patch
@solidjs/compiler	Patch
@solidjs/diagnostics	Patch
@solidjs/signals	Patch

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[ryansolid]

The runtime change looks directionally correct and remains independent from #3194, but the committed regression only covers a synchronous createProjection property read. Please add an asynchronous hydration regression through the public store path (createStore(fn) is sufficient) that demonstrates <Loading> remains pending through hydration/first flight and reveals only after the client result lands. This is the observable behavior the change is protecting.

No API concern. The measured client output is slightly smaller, so there is no size blocker.

[ryansolid]

The underlying fix looks right and matches the existing memo/server-store semantics. I'm going to add the broader asynchronous createStore(fn) + <Loading> hydration regression directly, then we'll move this toward merge. No action needed from you on the earlier coverage request.

[ryansolid]

Added the missing async createStore/Loading hydration regression. The focused hydration suite, declarations, type tests, treeshake diagnostics, and all size scenarios pass. Hydrated output is 13–43 gzip bytes smaller.